That would be a very plausible explanation to an A-Bomb looking visually more akin to his comicbook counterpart. It'd also 'freshen' things up a bit as he wouldnt be just fighting the 'same ol' villain' from before, in a sense.

Exactly, plus it would freshen up his looks like Hulk's already has been, they could even make him more powerful as well, despite him being plenty powerful in TIH.